EP0236281A1 - Apparat zur Reinigung der Luft von Gasen durch Waschen und Kühlen - Google Patents

Apparat zur Reinigung der Luft von Gasen durch Waschen und Kühlen Download PDF

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Publication number
EP0236281A1
EP0236281A1 EP87830064A EP87830064A EP0236281A1 EP 0236281 A1 EP0236281 A1 EP 0236281A1 EP 87830064 A EP87830064 A EP 87830064A EP 87830064 A EP87830064 A EP 87830064A EP 0236281 A1 EP0236281 A1 EP 0236281A1
Authority
EP
European Patent Office
Prior art keywords
washing
chamber
cooling
nozzle
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP87830064A
Other languages
English (en)
French (fr)
Inventor
Antonio Arena
Maria Pia Rosellini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAR-FIN Srl
Original Assignee
MAR-FIN Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAR-FIN Srl filed Critical MAR-FIN Srl
Publication of EP0236281A1 publication Critical patent/EP0236281A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2221/00—Applications of separation devices
    • B01D2221/02—Small separation devices for domestic application, e.g. for canteens, industrial kitchen, washing machines

Definitions

  • the apparatus has been designed for eliminating vapors, odours and fumes produced by oils heated up at high temperatures - in the range of 130/200°C - and it is therefore intended mostly for use in automatic, semi-automatic, manual frying equipment and in all those apparatuses demanding a suitable cleaning of gases generated during their working.
  • the apparatus for cleaning air from gases, vapors and fumes comprises a washing unit with at least one nozzle and a cooling unit being combined in a vacuum circuit operated by an aspirator and having an activated carbon or similar end filter.
  • the washing unit is disposed so as to project the liquid in counter-current direction in respect to the flow of gas to be cleaned.
  • Said washing unit may be fed with liquid acting in closed circuit, involving a pump, a filter and a tank which collects the liquid ejected by the nozzle(s), and may also comprise means for cooling the liquid in said closed circuit.
  • the washing unit may sometimes function even according to an open cycle.
  • the apparatus may comprise: a washing chamber having an intake opening, a shaped gate dividing said chamber into a channel-like upper part with variable cross-section and into a lower washing part, wherein the washing unit is provided with at least one nozzle; and a cooling chamber comprising a cooling set; said lower part of said washing chamber and said cooling chamber being in communication through an aperture; and to said cooling chamber an aspirator with activated carbon or equivalent filter being associated.
  • the cooling set or battery may make part of a cooling unit provided with a compressor and a condenser.
  • the washing chamber may form a tank for collecting the washing liquid ejected by the nozzle(s).
  • the cooling set may be developed so as to cool the washing liquid inside said tank.
  • the apparatus may comprise, inside a chamber, a cooling set or battery and at least one nozzle whose jet is oriented towards said cooling set and in a direction opposite to the gas flow between an intake opening, a suction opening and an aspirator; said chamber may also form a tank for collecting the washing liquid.
  • numeral 1 indicates a chamber in which oil fumes and vapors are generated, like a cooking chamber for frying equipment with means for admitting and picking up the batches of product being treated from time to time.
  • Numeral 5 indicates a washing chamber whose bottom also makes up a tank for collecting and feeding the washing liquid in the closed cycle embodiment.
  • An opening 7 provides the intake - by vacuum effect - of the stale air between chamber 1 and chamber 5.
  • a shaped separation gate 9 is provided which delimits, inside the chamber, an upper inlet part 5A forming a variable cross-section channel and a lower washing part 5B, in which a suction outlet opening 10 is provided; in said lower part 5B a washing unit is provided having one or more spraying nozzles 12, ' which are fed with washing liquid by a pump 14 which, sucks it out through a filter 16 housed in a conduit 18 from the bottom 5C of chamber 5.
  • the aperture 10 puts into communication the chamber 5 with an expansion and cooling chamber 20, which contains a cooling battery i.e. an evaporator 22 of a refrigeration unit including a compressor 24, a condenser 26 and a dehumidification filter 28.
  • a cooling battery i.e. an evaporator 22 of a refrigeration unit including a compressor 24, a condenser 26 and a dehumidification filter 28.
  • an aspirator 30 is combined, which is associated with a filter 32 of the activated carbon type.
  • the aspirator 30, which is located at the outlet of the apparatus, causes a vacuum inside all the chambers thereby the gas, which is usually made up of air, water vapor, oil vapors and fumes generated inside the chamber 1, 'enters the aperture 7 in the upper part 5A and goes into the part 5B which makes up the very washing chamber; the special configuration of the separating gate 9 is such as to make the gas reach .
  • the washing chamber 53 with a steady and uniform density, as well as to give same gas a high turbulence thereby obtaining optimum conditions in the subsequent treatment.
  • the washing process is carried out by means of the nozzle 12 or of a plurality of hozzles in order to obtain a diffused jet of water or other liquid which uniformly impinges on the whole conduit cross-section.
  • the direction of the water flow from the nozzle(s) 12 is opposite to that of the gas in order to increase the relative speed between the two streams as well as the gas turbulence.
  • the water (or other liquids) pressure and flow are determined according to the general phyisical dimensioning and the volume of gas to be treated.
  • the water drawn out from the nozzle 12 is collected at the bottom 5C of the chamber 5 - which acts, as already mentioned, as a tank - and is reintroduced in circulation by the pump 14 after being cleaned by the cartridge type, removable and replaceable or regenerable filter 16.
  • the washing water may be drawn from a usual tap, thereby the gathered water can be discharged and the nozzle(s) then operates according to an open cycle.
  • this causes the vapors condensation and the retention of the mist in the form of droplets on the walls of a heat exchanger for the cooling.
  • This procedure is carried out inside the expansion and cooling chamber 20.
  • the volume of this chamber 20 is greater than that of the other chamber, so that the gas going through the aperture 10 can naturally expand while decreasing its density, reducing its speed and thus improving the possibility of thermal exchange with the evaporator 22.
  • the condensed particles, possibly entrained by the air flow may be retained on whatever realized surfaces, either by friction, or impingement, or entrapment or electrical attraction, as well as directly by the evaporator set 22.
  • the gas temperature is drastically reduced by the heat exchanger constituted by the finned evaporator 22 connected with the refrigerator unit 24, 25, 28.
  • the evaporator may also be a finned evaporator of a two-phase hot-water heating radiator or may be the secondary of a heat exchanger having the primary connected with one of the above mentioned plants.
  • the construction of the whole apparatus may be accomplished so that the jet of the nozzle(s) 12 also collides with a cold exchanger, thus lowering the washing water temperature and improving the overall efficiency.
  • the construction of the whole apparatus may be accomplished so that part of the exchanger made up of the evaporator 22, or other cold body, may be dipped in the water tank at the bottom 5C of the chamber 5, in order to lower the water temperature and improve the overall efficiency.
  • the gas going out is virtually devoid of vapors and fumes and it is then possible to improve the treatment with the activated carbon filter 32 - which removes the most volatile molecules that possibly escaped the previous treatments - without necessitating too frequent replacements and maintenance.
  • Fig. 4 shows schematically a modified embodiment according to which a chamber 105 contains a nozzle 112 and the set or battery of an evaporator 122.
  • the gas to be cleaned is drawn by suction from an aperture 107 (corresponding to that indicated by 7), and the cleaned gas is expelled through an aperture 129, an aspirator 130 and an activated carbon filter 132.
  • the nozzle 112 throws out water in a direction opposite to the gas flow and towards the set of the evaporator 122, which cools both the gas and the water of the jet, said water gathering at the bottom of the chamber 105 which forms the tank 105A.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)
  • Water Treatment By Sorption (AREA)
EP87830064A 1986-02-25 1987-02-25 Apparat zur Reinigung der Luft von Gasen durch Waschen und Kühlen Withdrawn EP0236281A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8617702A IT8617702A0 (it) 1986-02-25 1986-02-25 Dispositivo di filtraggio gasmediante lavaggio e raffreddamento
IT1770286 1986-02-25

Publications (1)

Publication Number Publication Date
EP0236281A1 true EP0236281A1 (de) 1987-09-09

Family

ID=11150591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87830064A Withdrawn EP0236281A1 (de) 1986-02-25 1987-02-25 Apparat zur Reinigung der Luft von Gasen durch Waschen und Kühlen

Country Status (2)

Country Link
EP (1) EP0236281A1 (de)
IT (1) IT8617702A0 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5476536A (en) * 1992-08-10 1995-12-19 Holter Gmbh Process for removing harmful hydrocarbons, particularly plant protective aerosols and vapors, from the fresh air supplied to a vehicle cabin
NL1011111C2 (nl) * 1999-01-22 2000-07-25 Sara Lee De Nv Werkwijze voor het reinigen van gassen.
CN105833644A (zh) * 2016-04-28 2016-08-10 常州大学 浮油分离器
CN108159817A (zh) * 2017-12-22 2018-06-15 湖南湘讯企业管理有限公司 一种室内施工除尘装置
CN111111352A (zh) * 2020-01-16 2020-05-08 沂州科技有限公司 一种干熄焦循环放散尾气处理装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960992A (en) * 1974-08-22 1976-06-01 Cyrenne Henri Paul Combination flue gas scrubber and heat exchanger unit
DE3504400A1 (de) * 1984-02-10 1985-08-14 Eberhard 5241 Schutzbach Bornhütter Vorrichtung zum abscheiden von wrasen, fett- und oelpartikeln aus abgesaugten luftstroemen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960992A (en) * 1974-08-22 1976-06-01 Cyrenne Henri Paul Combination flue gas scrubber and heat exchanger unit
DE3504400A1 (de) * 1984-02-10 1985-08-14 Eberhard 5241 Schutzbach Bornhütter Vorrichtung zum abscheiden von wrasen, fett- und oelpartikeln aus abgesaugten luftstroemen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5476536A (en) * 1992-08-10 1995-12-19 Holter Gmbh Process for removing harmful hydrocarbons, particularly plant protective aerosols and vapors, from the fresh air supplied to a vehicle cabin
NL1011111C2 (nl) * 1999-01-22 2000-07-25 Sara Lee De Nv Werkwijze voor het reinigen van gassen.
EP1022042A1 (de) * 1999-01-22 2000-07-26 Sara Lee/DE N.V. Verfahren zur Reinigung von Gasen
CN105833644A (zh) * 2016-04-28 2016-08-10 常州大学 浮油分离器
CN105833644B (zh) * 2016-04-28 2018-06-08 常州大学 浮油分离器
CN108159817A (zh) * 2017-12-22 2018-06-15 湖南湘讯企业管理有限公司 一种室内施工除尘装置
CN111111352A (zh) * 2020-01-16 2020-05-08 沂州科技有限公司 一种干熄焦循环放散尾气处理装置

Also Published As

Publication number Publication date
IT8617702A0 (it) 1986-02-25

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Inventor name: ROSELLINI,MARIA PIA

Inventor name: ARENA, ANTONIO